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Finding the Fourth Proportional to 13,059.50, 18,027.24 and 8,813.07

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Solution

The fourth proportional to 13,059.50, 18,027.24 and 8,813.07 is: 12,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.50 : 18,027.24 = 8,813.07 : x
  2. Step 2: Convert to fraction form
    13,059.50/18,027.24 = 8,813.07/x
  3. Step 3: Cross multiply
    13,059.50x = 18,027.24 × 8,813.07
  4. Step 4: Simplify right side
    13,059.50x = 158,875,328.03
  5. Step 5: Solve for x
    x = 158,875,328.03/13,059.50
  6. Step 6: Final answer
    x = 12,165.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.